Thoughts on dating shorter men / tall women?

I've met a very beautiful girl , she's funny and sweet and seems to also like me the way I like her. The problem is I'm 1,76m long and she's I think about 1,80m. I won't let her know or think but it secretly makes me a bit insecure , Off course I will still date her and try to make it work regardless of that but im affraid she will feel a bit ashamed or something in front of her friends. I've been with several other girls before but never been so nervous and self concious bout myself.